python3-xarray-datatree

Tree-like hierarchical data structure for xarray

Description

Datatree provides hierarchical data structure, more flexible than a single xarray.Dataset object. It is able to represent netCDF files / Zarr stores with multiple nested groups in a single in-memory object, but datatree.DataTree objects have many other uses, such as:

* organising many related datasets, e.g. results of the same

experiment with different parameters, or simulations of the same

system using different models,

* analysing similar data at multiple resolutions simultaneously,

such as when doing a convergence study,

* comparing heterogenous but related data, such as experimental

and theoretical data, I/O with nested data formats such as

netCDF / Zarr groups.

The approach used is based on benbovy's DatasetNode example, the basic idea is that each tree node wraps a up to a single xarray.Dataset. The differences are that datatree:

* uses a node structure inspired by anytree for the tree,

* implements path-like getting and setting,

* has functions for mapping user-supplied functions over every

node in the tree,

* automatically dispatches some of xarray.Dataset's API over every

node in the tree (such as .isel),

* has a bunch of tests,

* has a printable representation

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Homepage

https://github.com/xarray-contrib/datatree

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